Lifting-jack



(No Model.)

BJP. LEWIS. LIFTING JAGK.

No. 517,465. Paten ted Apr. 3, 1894.

Wiliwsses:

AHONAL LrmoeRAPmNe w/xsmwamw u c UNITED STATES PATENT OFFICE.

BENJAMIN F. LEWIS, OF'AMESBURY, MASSACHUSETTS.

LlFTlNG-JACK.

SPECIFICATION formingpart of Letters Patent No. 517,465, dated April 3,1894. Application filed November 6, 1893- Serial No. 9 6- (N0 modeL) ToaZZ whom it may concern:

Be it known that I, BENJAMIN F. LEWIS, of Amesbury, in the county ofEssex and State of Massachusetts, have invented a new and usefulImprovement in Carriage-Jacks, which will, in connection with theaccompanying drawings, be hereinafter fully described, and specificallydefined in the appended claim.

In said drawings, Figure 1 represents my improved jack in elevation, andas viewed from the left in. Fig. 2. Fig; 2 represents the jack shown inFig. 1, but as viewed from the right in Fig. 1. Fig. 3 is like Fig. 2,except that the movable parts are shown as when the handle is raised toa horizontal position. Fig. 4 is a view the reverse of Fig.1, or asviewed from the right in Fig. 2.

The object of my invention is to prod ucea lifting jack that shall beeffective for use upon vehicles, that is simple in construction, durablein use, and that can be made and sold at low cost to all concerned; andthe invention consists of the respective parts and the combinationthereof as will be next explained and then specified in the claim.

Referring again to said drawings, A represents a standard having asuitable base B, to which it is secured. Ahandle is shown at O, which ispivoted at d to bar D, as shown. Through the top portion of standard Ais formed a slot E, in which lever 0 works; and below said slot from hto z' is a groove m in which barD moves. The pivot pin a of lever Crests in seats b formed in standard A, and can be arranged in any ofsaid notches by reason of the guide rods 0 secured to the standard sothat said pin a can pass freely up and down beneath the axle to beraised; and said rod is at its lower end held in position by means ofpin f inserted in said bar, and which passes through slots 9 formedthrough standard A, so that the top end of rod D can vibrate as lever Gis raised and lowered, but at its lower end it is guided by the pinfasabove stated. At the top of standard A, is secured the handle; by whichto lift and move the jack.

In use, the operator will, by means-of handle Z place the jack close tothe axle and he will then take hold of handle G by one hand and raise itand its pin ato such notch b that foot e is just below the axle that isto be raised; andwhen said pin a is so seated in I) he will depress thehandle and raise the axle. The form of lever O is such that when it isdepressed the pivot 01 is in rear of pivot a so that said lever holdsthe load suspended till the lever is again raised.

I claim as my invention- The combination in a jack, of a standard dulysupported, and formed with slot E, groove m, slots g and seats I), therod D provided with foot e, and pinfarranged to move up and down inslots g; lever 0 provided with pivot pin a arranged to enter said seatsI), and guide rods 0 secu red to standard A, to allow pin a to pass upand down when being adjusted; all substantially as specified.

BENJAMIN F. LEWIS.

Witnesses:

T. W. PORTER, L. W. HOWES.

